<blockquote><p>However, the insidious thing is that the failure wasn&acirc;&euro;&trade;t because their application was improperly coded to fail if it saw a fruit it didn&acirc;&euro;&trade;t know, it was because the platform they built on was statically typed. Specifically, the Web Services platform automatically converted the XML to objects by looking at our WSDL file (i.e. the interface definition language which stated up front which types are returned by our service) . So this meant that any time new types were added to our service, our WSDL file would be updated and any application invoking our service which was built on a Web services platform that performed such XMLobject mapping and was statically typed would need to be recompiled. Yes, recompiled.</p></blockquote>

Classic!